Automobile disk wheel



Amai 22 .1924. 1,492,232

W. E. WILLIAMS AUTOMOBILE DISK WHEEL Filed April 30, 1920 .2 c w w w www| Cl? Ni a Qi T ,IU I

Patented Apr. 29, 1924.

UNITED STATES PATENT OFFICE.

WILLIAM ERASTUS WILLIAMS, OF CHICAGO, ILLINOIS, ASSIGOR T AMERICAN STEELFOUNDRIES, 0F CHICAGO, ILLINOIS, A CORPORATION OF NEW JERSEY.

AUTOMOBILE msx WHEEL :Application tiled April 80, 1920. Serial No.377,819.

To all whom. it 'may concern.'

Be it known that I, WILLIAM ERASTUs WILLIAMS, a citizen of the UnitedStates, a resident of Chicago, in the county of Cook and State ofIllinois, have invented a new and useful Improvement in Automobile DiskWheels, of which the following is a specification.

My invention relates to disk Wheels adapted to receive pneumatic tires,and `especially to the disk and rim construction.

Reference will be had'to the accompanying drawing in which Figure 1 visa front elevation of the wheel.

Figure 2 is a Vpartial diametrical section of the wheel.

Figure 3 isa modified form of the rim fastening.

Figure 4 is an enlarged detail o-f the demounting feature at the hub.

In the drawing 1 indicates an automobile hub, here shown as the frontwheel. v2 indicates my disk and 3 indicates the main section of the rimand 4 indicates the companion flange of the rim.

The hub is provided with a special shaped flange 5 havin the curvedsurfaces 6 and 7 and the straig t portion 8.

The disk 2 is shaped to lit the curved portions 6 and 7 but is so shapedthat there is clearance across the straight face 8 of the hub flange 5.

An annular clamping ring 9 is shaped to fit the disk opposite the curvedsurfaces 6 and 7 and is held in place by a series of screw studs 10screwed on with special nuts 11 having within them the lockwashers 12which remain within the nuts when the latter are screwed oil by reasonof the dove tailed or under cut seat for the spring washers as isindicated by 13. Y

In clamping the disk to the hub as indicated, throu h the medium of thenuts 11, a tight snug t is made on the curved surfaces 6 and 7 whichthus relieve shearing strain on the stud screfff. 10 and permits aclearance around the said studs in the holes that pass through the diskfor the entry of the studs through the disk.

On removing the nuts 11 the llange 9 and the disk 2 readily come olf,owing to the eas release from the curved surfaces.

y shaping the angeof the hub and the inner annular surface of the diskto the shape of the curved surfaces 6 and 7 and the cost of the metalwhich I succeed in saving by reason of the construction shown.

The disk 2 has a peripheral annular portion fitting the interior surfaceof the rim and continuous with a broad annular c onical fitting theoutwardly converging conical flange of the rim is indicated, in order topermit thedisk to be 'dished as indicated, presenting a concave surfaceto the outside in order to resist skidding, and said conical` zonemerges' b a long gentle curve in the disk portion o the disk.

A further feature of value obtained by inclining this flange 14 outwardas indicated is to permitthe ydish of the disk as described, and also topermit a greater depth for 'the companion flange 4 in the distancemarked D in Figure 2. The companion flange is secured to themainortionof the v rim throughv the medium o a liange 15 which is secured byscrews 16 engaging ange nuts 17 on the back of the disk. The inflationpressures o f a pneumatic-tire exert enormous delecting strains, on thiscom anion flange, which must be taken up by tlie screws 16. It isdesirable to have as -few of the screws 16 as is 'permissible for takingup the bursting strains of the inflation pressures of the tire-tendinpush olf the companion flange 4 in a s1 ewlse direction.

Thus the companion flange 4 becomes as it were a bridge from screw 16 toscrew 16 and if this distance D is too small the ange will springbetween the screws and thus it is almost necessary in order to have aperfectly safe ange, to have the depth quite large, for if thec internalflanges 14 and 15 extend in parallel relationshi to the plain of therevolution of the whee it lessens the amount of dish thatv may be ivento the disk and further it crowds 1n upon the location of the air valveand fails to give suilicient clearance for proper access to the stem ofthe air valve on the inside of the-disk. But with the flanges inclinedas I have shown, plenty of clearance is providedfor the vair valve stemand plenty of dish is permitted to the main disk 2 of the wheel.

The lflange 14 of the main section 3 of the rim is turned over into ashoulder or flange 18 which registers and holds concentric the flange 15pf the companion flange 4 and thus relieves the screws 1G from shearingstress, which is a great desideratum.

In Figure 2 the screws 16 are placed in a line arallel with the axis ofthe wheel and em ossed or raised portions 20 are provided for seats forthe heads of the screws.- The nuts 17 as shown in Figure 2 have littleflanges 19 on their edges and are riveted through the disk and theflange 14 of the main rim and section 3, as indicated by 21.

In the detail, Figure 3, I show the screws passing through at Arightangles to the flanges 14 and 15 instead of beingV parallel with the axisof the wheel as is shown in Figure 2.

The inclination of the fianges 14 and 15 outward as is shown furnishesthe further `advantage that as the companion flange is secured home thepressure of the tire on that flange is partly taken up by the inclinedcontact surfaced between the flanges 14 and i 15 and not necessarily alltransmittedl to direction and passing by a long gentle curve into aninwardly diverging conical zone fittig the conical fiange, yand meansfor rigidly connecting the flange and the closely fitting conical zone.

2. The combination with a circumferentially divided rim the two parts ofwhich are provided with closely fitting, outwardly converging conicalflanges, of an inwardly dished disk having its circumferential zonegradually reverse in direction and by a continuous gentle curve mergingin a conical zone and closely fitting one of said flanges, and boltspassing said flanges and conical zone.

3. The combination with a rim made in two unequal, peripherallycontinuous rings connected by broad closely fitting marginal flangesconverging toward the hubs outer end, of a disk having the side towardsaid end concave, its concave portion being reversed by a single bendand merged in a conical zone fitting within said flanges, and boltspassing through the flanges and disk bindmg all together, wherebystrains are transmitted wholly through long gentle curves.

4. In a wheel of the class described, the

combination with a wheel web, of a metal rim divided at some distancefrom each face of the wheel and having the meeting edges of the twoparts provided, respectively,

with inwardly extending fianges having their meeting faces inclined awayfrom the central plane of the wheel, and the body of one fiang'e beingoverlapped by said web, wedge-like nuts riveted to the web, and boltsparallel to the axis of the wheel, passing through said flanges andengaging said nuts, res ectively.

.igned at Chicago, in the county of Cook and State of Illinois, thistwenty-seventh day of April, 1920.

WILLIAM ERASTUS WILLIAMS. Witnesses:

B. J. BERNHARD, F. Zonm..

